using th400 and conveter behind ls question
Thread Starter
On The Tree
Joined: Nov 2020
Posts: 131
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using th400 and conveter behind ls question I have a turbo 400 and ptc converter that I ran behind my bbc.Im wanting to use this combo on the ls engine im installing.Its a 4.8 ls.Im running a turbo on the ls and hoping for somewhere close to 700hp at the wheel with the combo.What are you recommendations on the flywheel and spacer for this kind of build.
TECH Junkie
Joined: Dec 2012
Posts: 3,605
Likes: 1,316
From: Iowa
If it worked on your BBC it will work on your LS
What year is your 4.8? Assuming it is the normal "short crank" and not an oddball year "long crank"
Just use the GM spacer part #12563532; you also need 6 longer bolts #19257940.
Crank-->spacer-->flexplate
What year is your 4.8? Assuming it is the normal "short crank" and not an oddball year "long crank"
Just use the GM spacer part #12563532; you also need 6 longer bolts #19257940.
Crank-->spacer-->flexplate
This thread should have everything you're looking for:
https://ls1tech.com/forums/automatic...questions.html
https://ls1tech.com/forums/automatic...questions.html